Oil-well reamer



Patented Mar. 4, 1924.

UNITED STATES .ARTHUR S. LIGNES, QF INDEPENDENCE, KANSAS.

OIL-WELL BEAMER.

Application led December 8, 1929. Serial No. 429,240.

To all whom t may concern.'

Be it known that I, ARTHUR S. JONES, a citizen of the United States, residing at Independence, in the county of Montgomery and State of Kansas, have invented certain new and useful Improvements in Oil-Well Reamers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

rIhis invention relates to an oil well reamer and one of the objects of the invention is to provide a novel means for reaming the well by rotative action of a shaft lowered longitudinally of the well.

The invention contemplates a rotative shaft on which is a head eccentrically carrying a beater or reamer which, in itself, has independent but opposed rotative movement about its own aXis, there being cutting or abrading means on the exterior of the reamer.

The novel construction of the preferred form of my device is illustrated in the accompanying drawings, in which Fig. 1 is a view partly in elevation andV partly in section of a reamer and its connection to the head.

Fig. 2 is a side elevational view of the device in use.

Fig. 3 is a detail View of the friction washer for opposing rotative action of the reamer, and

Fig. 4 is a cross sectional view on the line 4-'4 of Fig. 1, looking in the direction of the arrows.

Referring now to the drawings by numerals of reference:

1 designates a rotatable head which may be rotated by any suitable means as, for` example, by the vertical shaft 2. The head is provided with a bifurcated portion in the recess of which is eccentrically mounted shaft 3, pivoted to the head as at 4. The shaft 3 has a threaded end 5 and said shaft or rod is adapted to receive the reamer 6, which is sleeved thereupon and is provided at one end with a packing gland 7. The other end of the reamer is recessed as at 8, the recess being adapted to be closed by a plug 9..

Within the recess is a spring 10, coiled about the free end of the rod 3 and said spring bears upon a washer 11 having onpositely disposed lugs 12 and 13, which engage longitudinal grooves 14 and 15 in the recess 8. There is a similar washer 16, also having oppositely disposed lugs 17 and 18, which engage the grooves 14 and 15, and between the washers 11 and 16 is another washer 19, which has an inwardly projecting lug 20 engaging a groove or notch 21 in the shaft or rod 3.

The washers bear against the lock nut 22 which acts as a lock nut for the nut 23 on the threaded end 5 of the shaft 3 and they are held in place by the spring 10, one end of which bears against the plug 9 and the other against the washer 10.

The washers and spring constitute friction means for opposing rotative movement of the member 6 although the member 6 may rotate slowly about the shaft when the device is in motion.

There are cutting lugs or teeth 24 arranged about the outer surface of the reamer 6, which do the actual cutting` when the device is in operation as shown in Fig. 2, the lugs or teeth 24 will tear away the earth as indicated, the contact with the earth being sufficient to cause a retarded rotative axial movement of the member 6 which will result in the continuous presentation of new cutting devices, as will be clearly apparent.

What I claim and desire to secure by Iletters Patent is:

1. An oil well reamer comprising a rotatable head, a rod eccentrically carried by the head, a cutter mounted on the rod,

Aand a friction means on the rod to oppose rotation of the cutter.

2. An oil well reamer comprising a rotatable head, a rod eccentrically mounted upon the head, a cutting weight having a rod-receiving opening therethrough, a recess at one end of the cutting weight communieating with the opening, and friction means carried by the rod within the recess and engaging the cutting weight.

3. An oil well reamer comprising a rotatable head, a rod eccentrically mounted upon the head and having swinging movement about the axis of the head, a weight rotatably carried by the rod, and a friction device between the head and the rod.

4. An oil well reamer comprising a rotatable head having a transverse slot in at its lower end, a nut on said rod Within the recess, Washers on the rod and secured to the reanier, a Washer on the rod Secured thereto and interposed between the first 15 named Washers, and a spring surrounding the rod and engaging the rearner and the outer one of said first named Washers for the purpose set forth.

ln testimony whereof I affix my signa- 20 ture.

ARTHUR S. JONES. 

